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Unlock harder levels by getting an average of 80% or higher.

Earn up to 5 stars for each level

The more questions you answer correctly, the more stars you'll unlock!

Each game has 10 questions.

Green box means correct.

Yellow box means incorrect.

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Secondary 2 - Number and Algebra

Standard 8.NA.5 - Practice simplifying variable expressions using the distributive property.

Included Skills:

Algebraic expressions and formulae

• 5.1 simplification of linear expressions with fractional coefficients such as 2x/3 - 3(x-5)/2

• 5.2 expansion of the product of two linear expressions

• 5.3 use brackets and extract common factors

• 5.4 use of:

- (a + b)² = a² + 2ab + b²

- (a - b)² = a² - 2ab + b²

- a - b² = (a + b)(a-b)

• 5.5 factorisation of quadratic expressions ax² + bx + c

• 5.6 multiplication and division of simple algebraic fractions such as (3a/4b²)(5ab/3), 3a/4 ÷ 9a²/10

• 5.7 Use algebra manipulatives, e.g. algebra discs to explain the process of expanding the product of two linear expressions of the form px + q, where p and q are integers, to obtain a quadratic expression of the form ax² + bx + c.

• 5.8 Use the AlgeDisc application in AlgeTools, to factorise a quadratic expression of the form ax² +bx + c into two linear factors where a, b and c are integers.

• 5.9 Work in groups to identify and explain common errors in algebraic manipulations, such as (x + y)² = x² + y².

If you notice any problems, please let us know.